Max practices the piano and the guitar for a total of 150 minutes every day. he practices the guitar for 80 minutes longer than he practices the piano.

part a: write a pair of linear equations to show the relationship between the number of minutes max practices the guitar (x) and the number of minutes he practices the piano (y) every day. (5 points)

part b: how much time does max spend practicing the piano every day? show your work. (3 points)

part c: is it possible for max to have spent 125 minutes practicing the guitar if he practices for a total of exactly 150 minutes and practices the guitar for 80 minutes longer than he practices the piano? explain your reasoning. (2 points)

i will give brainleist

answer:

eg. x minutes for piano practice, y minutes for guitar practice

the equation

x + y = 150 (1st equation)

y = 80 + x (2nd equation)

how to solve

change y to 80 + x in 1st equation

x + y = 150

x + 80 + x = 150

2x + 80 = 150

2x = 150 - 80

2x = 70

x = 70/2

x = 35

max practice the piano 35 minutes everyday

step-by-step explanation:

he used the algebra tiles correctly.

step-by-step explanation:

given : 3x(2x-1)

solution :

since he used algebra tiles .

armando's solution is the same in the solution shown in figure

as he distributed 2x into x and x and wrote them vertically

and also write   -1 vertically

and 3x into x and x and x and wrote it horizontally

performing the multiplication in the algebra tiles we get

and solving the given expression :

3x(2x-1)

since solving the expression using tiles   and solving the expression algebraically we get the same answer

thus   we can choose the first statement as the answer to this problem which is "he used the algebra tiles correctly".

c

step-by-step explanation: